Literature summary extracted from
Maluf, M.; Da Silva, C.; De Oliveira, M.; Tavares, A.; Silvarolla, M.; Guerreiro Filho, O.
Altered expression of the caffeine synthase gene in a naturally caffeine-free mutant of Coffea arabica (2009), Genet. Mol. Biol., 32, 802-810.
Protein Variants
EC Number |
Protein Variants |
Comment |
Organism |
---|
2.1.1.160 |
additional information |
naturally occuring low-caffeine fruits contain an extra transcript of the caffeine synthase gene containing only part of exon 1 and all of exon 3. The sequence of the mutant caffeine synthase gene shows a substitution I266V in the enzyme active site that probably interferes with enzymatic activity. The absence of caffeine in these mutants probably results from a combination of transcriptional regulation and the presence of mutations |
Coffea arabica |
Organism
EC Number |
Organism |
UniProt |
Comment |
Textmining |
---|
2.1.1.159 |
Coffea arabica |
Q8H0G0 |
CTS2 |
- |
2.1.1.160 |
Coffea arabica |
Q8H0D3 |
CCS1 |
- |
Expression
EC Number |
Organism |
Comment |
Expression |
---|
2.1.1.159 |
Coffea arabica |
naturally occuring low-caffeine fruits have a lower expression of the theobromine synthase and caffeine synthase genes and also contain an extra transcript of the caffeine synthase gene encoding a mutant form. The absence of caffeine in these mutants probably results from a combination of transcriptional regulation and the presence of mutations |
additional information |
2.1.1.160 |
Coffea arabica |
naturally occuring low-caffeine fruits have a lower expression of the theobromine synthase and caffeine synthase genes and also contain an extra transcript of the caffeine synthase gene encoding a mutant form. The absence of caffeine in these mutants probably results from a combination of transcriptional regulation and the presence of mutations |
additional information |